Encased product and method and apparatus for encasing same
CA 1291895 C · Owner: Dykes, Robert Muarice · Inventors: Dykes, Robert Muarice; Smith, David Welton; Townsend, Ray Theodore
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The encased product of the present invention comprises an elongated flexible casing cylindrically shaped substantially along its length and having opposite end closures. A product material fills the cavity formed by the flexible casing and maintains the casing in a cylindrical shape. The cylindrical casing is formed from an elongated strip of flexible material having opposite side edges the strip being, formed into a plurality of helical revolutions with the side edges of the strip within each one of the helical revolutions frictionally overlapping and engaging the side edges within adjacent helical revolutions of the strip. The product is formed by continuously applying an elongated …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted November 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 12, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.